/**
 * Controllers: Users
 */

const jwt = require(`jsonwebtoken`);
const { users } = require(`../models`);
const { comparePassword } = require(`../utils`);

/**
 * Save
 * @param {*} req
 * @param {*} res
 * @param {*} next
 */
const register = async (req, res, next) => {
	try {
		await users.register(req.body);
	} catch (error) {
		return res.status(400).json({ error: error.message });
	}

	let user;
	try {
		user = await users.getByEmail(req.body.email);
	} catch (error) {
		console.log(error);
		return next(error, null);
	}

	const token = jwt.sign(
		users.convertToPublicFormat(user),
		process.env.tokenSecret,
		{
			expiresIn: 604800, // 1 week
		}
	);

	res.json({
		message: `Authentication successful`,
		token,
	});
};

/**
 * Sign a user in
 * @param {*} req
 * @param {*} res
 * @param {*} next
 */
const login = async (req, res, next) => {
	let user;
	try {
		user = await users.getByEmail(req.body.email);
	} catch (error) {
		console.log(error);
		return next(error, null);
	}

	if (!user) {
		return res
			.status(404)
			.send({ error: `Authentication failed. User not found.` });
	}

	const isCorrect = comparePassword(req.body.password, user.password);
	if (!isCorrect) {
		return res
			.status(401)
			.send({ error: `Authentication failed. Wrong password.` });
	}

	const token = jwt.sign(
		users.convertToPublicFormat(user),
		process.env.tokenSecret,
		{
			expiresIn: 604800, // 1 week
		}
	);

	res.json({
		message: `Authentication successful`,
		token,
	});
};

/**
 * Get a user
 * @param {*} req
 * @param {*} res
 * @param {*} next
 */
const get = async (req, res) => {
	const user = users.convertToPublicFormat(req.user);
	res.json({ user });
};

module.exports = {
	register,
	login,
	get,
};